Survey on non‐isolated high‐voltage step‐up dc–dc topologies based on the boost converter

The major consideration in dc–dc conversion is often associated with high efficiency, reduced stresses involving semiconductors, low cost, simplicity and robustness of the involved topologies. In the last few years, high‐step‐up non‐isolated dc–dc converters have become quite popular because of its wide applicability, especially considering that dc–ac converters must be typically supplied with high dc voltages. The conventional non‐isolated boost converter is the most popular topology for this purpose, although the conversion efficiency is limited at high duty cycle values. In order to overcome such limitation and improve the conversion ratio, derived topologies can be found in numerous publications as…

• CD
  Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
• CN
  Conselho Nacional de Desenvolvimento Científico e Tecnológico
• FD
  Fundação de Amparo à Pesquisa do Estado de Minas Gerais
• IN
  Instituto Nacional de Energia Elétrica